I'm currently using the Black Raccoon library in my iOS app to upload small files to an FTP server using the following suggested code:
- (IBAction) uploadFile :(id)sender {
//----- get the file path for the item we want to upload
NSString *applicationDocumentsDir = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSString *filepath = [NSString stringWithFormat: #"%#/%#", applicationDocumentsDir, #"file.text"];
//----- read the entire file into memory (small files only)
uploadData = [NSData dataWithContentsOfFile: filepath];
//----- create our upload object
uploadFile = [[BRRequestUpload alloc] initWithDelegate: self];
//----- for anonymous login just leave the username and password nil
uploadFile.path = #"/home/user/myfile.txt";
uploadFile.hostname = #"192.168.1.100";
uploadFile.username = #"yourusername";
uploadFile.password = #"yourpassword";
//----- we start the request
[uploadFile start]; }
- (NSData *) requestDataToSend: (BRRequestUpload *) request {
//----- returns data object or nil when complete
//----- basically, first time we return the pointer to the NSData.
//----- and BR will upload the data.
//----- Second time we return nil which means no more data to send
NSData *temp = uploadData; // this is a shallow copy of the pointer
uploadData = nil; // next time around, return nil...
return temp; }
What do I need to do to upload large files (greater than 50MB) without needing to write the entire file to be uploaded into memory?
Related
I am uploading a password protected zip file as a backup to iCloud, it gets uploaded and then I download, unzip and use the same file, it works perfectly fine only if we are doing all these cool stuffs from the same device.
Consider this scenario,
1. zip and upload the file from one device.
2. download and unzip it from other device (Cannot unzip as it does not recognize that file is in zip format)
Note:
I have cross verified that file gets successfully downloaded in other device by enabling my iTunes file sharing.
But I am not able to unzip the file.
I found the solution by myself hope this will save someone else time, converting password protected zip file into data and uploading, downloading, unzipping the same
Any file can be uploaded to iCloud container of any size (yes you should be having that much of space in iCloud) lets take an example SampleData.zip
// 1 This method will upload or sync SampleData.zip file in iCloud container, iCloud actually checks the metadata of your file before it uploads it into your iCloud container (so for first time it will upload the file and from next time it will only upload the changes)
-(void) iCloudSyncing:(id)sender
{
//Doc dir
NSString *documentsDirectory = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSString *filePath = [documentsDirectory stringByAppendingPathComponent:#"SampleData.zip"];
NSURL *u = [[NSURL alloc] initFileURLWithPath:filePath];
NSData *data = [[NSData alloc] initWithContentsOfURL:u];
//Get iCloud container URL
NSURL *ubiq = [[NSFileManager defaultManager]URLForUbiquityContainerIdentifier:nil];// in place of nil you can add your container name
//Create Document dir in iCloud container and upload/sync SampleData.zip
NSURL *ubiquitousPackage = [[ubiq URLByAppendingPathComponent:#"Documents"]URLByAppendingPathComponent:#"SampleData.zip"];
Mydoc = [[MyDocument alloc] initWithFileURL:ubiquitousPackage];
Mydoc.zipDataContent = data;
[Mydoc saveToURL:[Mydoc fileURL] forSaveOperation:UIDocumentSaveForCreating completionHandler:^(BOOL success)
{
if (success)
{
NSLog(#"SampleData.zip: Synced with icloud");
}
else
NSLog(#"SampleData.zip: Syncing FAILED with icloud");
}];
}
// 2 Download data from the iCloud Container
- (IBAction)GetData:(id)sender {
//--------------------------Get data back from iCloud -----------------------------//
id token = [[NSFileManager defaultManager] ubiquityIdentityToken];
if (token == nil)
{
NSLog(#"ICloud Is not LogIn");
}
else
{
NSLog(#"ICloud Is LogIn");
NSError *error = nil;
NSURL *ubiq = [[NSFileManager defaultManager]URLForUbiquityContainerIdentifier:nil];// in place of nil you can add your container name
NSURL *ubiquitousPackage = [[ubiq URLByAppendingPathComponent:#"Documents"]URLByAppendingPathComponent:#"SampleData.zip"];
BOOL isFileDounloaded = [[NSFileManager defaultManager]startDownloadingUbiquitousItemAtURL:ubiquitousPackage error:&error];
if (isFileDounloaded) {
NSLog(#"%d",isFileDounloaded);
NSString *documentsDirectory = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
//changing the file name as SampleData.zip is already present in doc directory which we have used for upload
NSString* fileName = [NSString stringWithFormat:#"RecSampleData.zip"];
NSString* fileAtPath = [documentsDirectory stringByAppendingPathComponent:fileName];
NSData *dataFile = [NSData dataWithContentsOfURL:ubiquitousPackage];
BOOL fileStatus = [dataFile writeToFile:fileAtPath atomically:NO];
if (fileStatus) {
NSLog(#"success");
}
}
else{
NSLog(#"%d",isFileDounloaded);
}
}
}
//3 voila its done :)
I'm trying to do a simple implementation of AVAssetResourceLoaderDelegate on OSX/iOS as a sort of sanity check before continuing to implement a more complex version. I figured I would start by just making it load the full video file in one big read. To my surprise I haven't been able to get this to work.
Here's my code:
- (BOOL) resourceLoader:(AVAssetResourceLoader *)resourceLoader shouldWaitForLoadingOfRequestedResource:(nonnull AVAssetResourceLoadingRequest *)loadingRequest
{
NSString* path = #"/Users/andrew/Projects/work/videotextureplugin-streaming/unityProject/Assets/StreamingAssets/BigBuckBunny_640x360.m4v";
AVAssetResourceLoadingDataRequest* dataRequest = loadingRequest.dataRequest;
AVAssetResourceLoadingContentInformationRequest* contentRequest = loadingRequest.contentInformationRequest;
// handle content request
if (contentRequest)
{
NSDictionary *attributes = [[NSFileManager defaultManager] attributesOfItemAtPath:path error:NULL];
unsigned long long fileSize = [attributes fileSize]; // in bytes
NSLog(#"File Size: %llu", fileSize);
contentRequest.contentType = #"com.apple.m4v-video";
contentRequest.contentLength = fileSize;
contentRequest.byteRangeAccessSupported = NO;
}
// handle data request
if (dataRequest)
{
NSFileHandle* file = [NSFileHandle fileHandleForReadingAtPath:path];
NSData* requestedData = [file readDataToEndOfFile];
NSLog(#"Requested data length: %lu", (unsigned long)[requestedData length]);
[loadingRequest.dataRequest respondWithData:requestedData];
[loadingRequest finishLoading];
}
return YES;
}
The file size and data length values are correct when they print. It just says "AVPlayer ready to play but has zero video tracks" in the log. I've tried a few different video files, as well as various contentType settings with no luck. All of the files I've tested work fine if I open them via a URL like "file:///" followed by the same path used above.
Thanks in advance for any assistance or advice on debugging this.
I want to save a mp4 video in my folder but when I open again the app, this file is nil. But when I save the file, I can open it, so it seems that it disappears from the folder.
Save:
NSData *videoData = [NSData dataWithContentsOfURL:exportUrl];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *tempPath = [documentsDirectory stringByAppendingFormat:#"/%#",videoName];
self.path_video_to_save = tempPath;
BOOL success = [videoData writeToFile:tempPath atomically:YES];
if (success)
NSLog(#"saved");
else
NSLog(#"not saved!!!!!!!!!!!!!!");
I get the success in true so it's ok and I can play my video well.
NSString *path_video = [dict objectForKey:#"path"]; //dictionary where I save the path, the same before and after closing app
NSData *videoData = [NSData dataWithContentsOfURL:[NSURL fileURLWithPath:path_video]];
if (videoData == nil){
NSLog(#"DATA NULL");
}
else
NSLog(#"DATA OK");
NSLog(#"PATH:%#", path_video);
self.player = [[MPMoviePlayerController alloc] initWithContentURL:[NSURL fileURLWithPath:path_video]];
and at this point it work fine.
But when I close and open again the app and I get the path, my app crash and I have the log "DATA NULL" I don't understand why when I close my app the file disappear... what's up?
thanks
This is because in iOS 8 + the name of the Application folder is renamed each time you launch it.
Check it in /Users/"your username"/Library/Developer/CoreSimulator/Devices/"device name"/data/Containers/Data/Application/"application name" (Test in simulator).
So, you have to save the path without the document directory. And when you are trying to retrieve the path you have to add the document directory before the path you saved previously.
Like let your custom folder name is "Save_Video" and file name is "video_01.mp4".
Your file saving path will be "Application document directory"/Save_Video/video_01.mp4
Then you have to store only "Save_Video/video_01.mp4"(in Database/ NSUserDefaults) and when you are retrieving the file the path should be
"Application document directory"/Save_Video/video_01.mp4
I use this code to save some PDF data to a file, send it to another app using the "Open In" menu, then delete the file when that's done:
- (void)openIn:(NSData *)fileData {
// save the PDF data to a temporary file
NSString *fileName = [NSString stringWithFormat:#"%#.pdf", self.name];
NSString *filePath = [NSString stringWithFormat:#"%#/Documents/%#", NSHomeDirectory(), fileName];
BOOL result = [fileData writeToFile:filePath atomically:TRUE];
if (result) {
NSURL *URL = [NSURL fileURLWithPath:filePath];
UIDocumentInteractionController *controller = [[UIDocumentInteractionController interactionControllerWithURL:URL] retain];
controller.delegate = self;
[controller presentOpenInMenuFromBarButtonItem:self.openInButton animated:TRUE];
}
}
- (void)documentInteractionControllerDidDismissOpenInMenu:(UIDocumentInteractionController *)controller {
// when the document interaction controller finishes, delete the temporary file
NSString *fileName = [NSString stringWithFormat:#"%#.pdf", self.name];
NSString *filePath = [NSString stringWithFormat:#"%#/Documents/%#", NSHomeDirectory(), fileName];
[[NSFileManager defaultManager] removeItemAtPath:filePath error:nil];
}
This has worked fine until iOS 8. Now, the file is created and I can verify that it contains the correct content, the Open In menu appears, I can select an app, and the delegate method runs and cleans up the file. But instead of iOS switching to the selected app and copying the file into it as it did before, the Open In menu simply closes when I select an app, and the file is not copied.
This works if I give the UIDocumentInteractionController an existing file. It also works if I use the provided fileData but change the destination filename to the filename of an existing file. This suggests a permissions problem -- as if new files are created in iOS 8 with default permissions that UIDocumentInteractionController can't read.
Does anyone know what's happening and how I can work around it?
It looks like the order of operations has changed slightly in iOS 8. DidDismissOpenInMenu used to run after the file was finished sending, but now it runs after the file begins sending. This means my cleanup code was sometimes running before the file was finished sending, leaving no file to send. I figured this out after noticing that smaller files were being sent okay; apparently the processing for smaller files was finishing before my cleanup code got them, but the processing for larger files was not.
To ensure the correct timing, but also clean up files that are created when the user opens the DocumentInteractionController and then dismisses the controller without doing anything, I changed my methods like this:
- (void)openIn:(NSData *)fileData {
// save the PDF data to a temporary file
NSString *fileName = [NSString stringWithFormat:#"%#.pdf", self.name];
NSString *filePath = [NSString stringWithFormat:#"%#/Documents/%#", NSHomeDirectory(), fileName];
BOOL result = [fileData writeToFile:filePath atomically:TRUE];
if (result) {
self.sendingFile = FALSE;
NSURL *URL = [NSURL fileURLWithPath:filePath];
UIDocumentInteractionController *controller = [[UIDocumentInteractionController interactionControllerWithURL:URL] retain];
controller.delegate = self;
[controller presentOpenInMenuFromBarButtonItem:self.openInButton animated:TRUE];
}
}
- (void)documentInteractionController:(UIDocumentInteractionController *)controller willBeginSendingToApplication:(NSString *)application {
// the user chose to send the file, so we shouldn't clean it up until that's done
self.sendingFile = TRUE;
}
- (void)documentInteractionControllerDidDismissOpenInMenu:(UIDocumentInteractionController *)controller {
if (!self.sendingFile) {
// the user didn't choose to send the file, so we can clean it up now
[self openInCleanup];
}
}
- (void)documentInteractionController:(UIDocumentInteractionController *)controller didEndSendingToApplication:(NSString *)application {
// the user chose to send the file, and the sending is finished, so we can clean it up now
[self openInCleanup];
self.sendingFile = FALSE;
}
- (void)openInCleanup {
// delete the temporary file
NSString *fileName = [NSString stringWithFormat:#"%#.pdf", self.name];
NSString *filePath = [NSString stringWithFormat:#"%#/Documents/%#", NSHomeDirectory(), fileName];
[[NSFileManager defaultManager] removeItemAtPath:filePath error:nil];
}
Update for iOS 11
Before iOS 11, it seems that the operating system kept a copy of the file available until the receiving app was finished reading it, even though my cleanup function ran as soon as the file was sent out from my app. In iOS 11, this changed and the receiving app fails to read the file because my app deletes it before that's done. So now instead of saving the temporary file to Documents and using the openInCleanup method to delete it immediately, I'm saving the temporary file to tmp and emptying the tmp folder next time the app launches. This approach should also work with older iOS versions. Just remove openInCleanup, change Documents to tmp in the paths, and add this to applicationDidFinishLaunching:
// clear the tmp directory, which will contain any files saved for Open In
NSString *tmpDirectory = [NSString stringWithFormat:#"%#/tmp", NSHomeDirectory()];
NSArray *tmpFiles = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:tmpDirectory error:NULL];
for (NSString *tmpFile in tmpFiles) {
[[NSFileManager defaultManager] removeItemAtPath:[NSString stringWithFormat:#"%#/%#", tmpDirectory, tmpFile] error:NULL];
}
After reading this post, I already hoped to have found the solution to a similar problem:
For me, as of iOS 8, sharing was only working with Mail.app. It was failing for Dropbox, etc.
Turns out it was something else:
On my interactionController I was setting an annotation like this:
interactionController.annotation = #"Some text"
For unknown reasons, this prevented Dropbox to open at all. There were no error messages or anything. Removing this line solved the issue.
I want to upload or save image to FTP server from my iOS app. but every time I get error that ftp not connected
I use SCRFTPRequest library.
here is my code...
UIImage *image = [info objectForKey:#"UIImagePickerControllerOriginalImage"];
NSData * imageData = UIImagePNGRepresentation(image);
NSFileManager * fileManager = [NSFileManager defaultManager];
NSArray * paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString * documentsDirectory = [paths objectAtIndex:0];
NSString *fullPath = [documentsDirectory stringByAppendingPathComponent:[NSString stringWithFormat:#"%#.png",image]];
[fileManager createFileAtPath:fullPath contents:imageData attributes:nil];
NSLog(#"image saved");
[picker dismissViewControllerAnimated:YES completion:nil];
ftpRequest = [SCRFTPRequest requestWithURL:[NSURL URLWithString:#"ftp://myURL"] toUploadFile:fullPath];
ftpRequest.username = #"DemoUser";
ftpRequest.password = #"DemoUser";
ftpRequest.customUploadFileName = #"inapp";
ftpRequest.delegate = self;
[ftpRequest startAsynchronous];
From White Raccoon,
Just Drag and Drop the WhiteRaccoon.h and WhiteRaccoon.m file and import CFNetwork framework in your project.
- (void) upload
{
//the upload request needs the input data to be NSData
//so we first convert the image to NSData
UIImage * ourImage = [UIImage imageNamed:#"space.jpg"];
NSData * ourImageData = UIImageJPEGRepresentation(ourImage, 100);
//we create the upload request
//we don't autorelease the object so that it will be around when the callback gets called
//this is not a good practice, in real life development you should use a retain property to store a reference to the request
WRRequestUpload * uploadImage = [[WRRequestUpload alloc] init];
uploadImage.delegate = self;
//for anonymous login just leave the username and password nil
uploadImage.hostname = #"xxx.xxx.xxx.xxx";
uploadImage.username = #"myuser";
uploadImage.password = #"mypass";
//we set our data
uploadImage.sentData = ourImageData;
//the path needs to be absolute to the FTP root folder.
//full URL would be ftp://xxx.xxx.xxx.xxx/space.jpg
uploadImage.path = #"/space.jpg";
//we start the request
[uploadImage start];
}
-(void) requestCompleted:(WRRequest *) request{
//called if 'request' is completed successfully
NSLog(#"%# completed!", request);
}
-(void) requestFailed:(WRRequest *) request{
//called after 'request' ends in error
//we can print the error message
NSLog(#"%#", request.error.message);
}
-(BOOL) shouldOverwriteFileWithRequest:(WRRequest *)request {
//if the file (ftp://xxx.xxx.xxx.xxx/space.jpg) is already on the FTP server,the delegate is asked if the file should be overwritten
//'request' is the request that intended to create the file
return YES;
}
Finally i got success to upload image file on ftp server.
To upload image on ftp i used Gold Raccoon external library.with this library you can easily upload image to ftp server.
https://github.com/albertodebortoli/GoldRaccoon